Hidekazu


Experimental Performance Study of STBC-Based Cooperative and Diversity Relaying
Makoto MIYAGOSHI Hidekazu MURATA 
Publication:   
Publication Date: 2020/05/01
Vol. E103-A  No. 5  pp. 798-801
Type of Manuscript:  LETTER
Category: Communication Theory and Signals
Keyword: 
multi-hop transmissionspace-time block codepacket error ratecooperative relayingtransmission experiment
 Summary | Full Text:PDF(377.1KB)

FOREWORD
Hidekazu MURATA 
Publication:   
Publication Date: 2019/08/01
Vol. E102-B  No. 8  pp. 1351-1351
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(329KB)

A Novel Radio Resource Optimization Scheme in Closed Access Femtocell Networks Based on Bat Algorithm
I Wayan MUSTIKA Nifty FATH Selo SULISTYO Koji YAMAMOTO Hidekazu MURATA 
Publication:   
Publication Date: 2019/04/01
Vol. E102-B  No. 4  pp. 660-669
Type of Manuscript:  INVITED PAPER (Special Section on Sensing, Wireless Networking, Data Collection, Analysis and Processing Technologies for Ambient Intelligence with Internet of Things)
Category: 
Keyword: 
heterogeneous networkmacrocellfemtocellresource allocationoptimizationbat algorithminterference management
 Summary | Full Text:PDF(1.7MB)

User Satisfaction Constraint Adaptive Sleeping in 5G mmWave Heterogeneous Cellular Network
Gia Khanh TRAN Hidekazu SHIMODAIRA Kei SAKAGUCHI 
Publication:   
Publication Date: 2018/10/01
Vol. E101-B  No. 10  pp. 2120-2130
Type of Manuscript:  Special Section PAPER (Special Section on Wireless Distributed Networks for IoT Era)
Category: 
Keyword: 
5Gwireless distributed heterogeneous networksmmWavesleepingresource managementsatisfaction
 Summary | Full Text:PDF(1.6MB)

Analytical End-to-End PER Performance of Multi-Hop Cooperative Relaying and Its Experimental Verification
Hidekazu MURATA Makoto MIYAGOSHI Yuji OISHI 
Publication:   
Publication Date: 2017/03/01
Vol. E100-B  No. 3  pp. 449-455
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
cooperative relayingspace-time codingmulti-hop relayingtransmission experiment
 Summary | Full Text:PDF(1.3MB)

Assembly Technologies for Integrated Transmitter/Receiver Optical Sub-Assembly Modules
Keita MOCHIZUKI Tadashi MURAO Mizuki SHIRAO Yoshiyuki KAMO Nobuyuki YASUI Takahiro YOSHIMOTO Daisuke ECHIZENYA Masaya SHIMONO Hidekazu KODERA Masamichi NOGAMI Hiroshi ARUGA 
Publication:   
Publication Date: 2017/02/01
Vol. E100-C  No. 2  pp. 187-195
Type of Manuscript:  INVITED PAPER (Special Section on Fabrication Technologies Supporting the Photonic/Nanostructure Devices)
Category: 
Keyword: 
hybrid integrationoptical sub-assembly100 Gb/s Ethernet
 Summary | Full Text:PDF(3.6MB)

User Collaborated Reception of Spatially Multiplexed Signals: An Experimental Study in Group Mobility
Ilmiawan SHUBHI Yuji HAYASHI Hidekazu MURATA 
Publication:   
Publication Date: 2017/01/01
Vol. E100-A  No. 1  pp. 227-231
Type of Manuscript:  Special Section LETTER (Special Section on Wideband Systems)
Category: 
Keyword: 
collaborative interference cancellationfield experimentsMU-MIMOspatial multiplexing
 Summary | Full Text:PDF(3.6MB)

Radio Access Technologies for Fifth Generation Mobile Communications System: Review of Recent Research and Developments in Japan
Hidekazu MURATA Eiji OKAMOTO Manabu MIKAMI Akihiro OKAZAKI Satoshi SUYAMA Takamichi INOUE Jun MASHINO Tetsuya YAMAMOTO Makoto TAROMARU 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/08/01
Vol. E99-B  No. 8  pp. 1638-1647
Type of Manuscript:  INVITED PAPER (Special Section on Advanced Information and Communication Technologies and Services in Conjunction with Main Topics of APCC2015)
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
fifth generation mobile communication systemshigher frequency bandmassive MIMOC-Plane/U-Plane splittingC-RAN
 Summary | Full Text:PDF(2.9MB)

An Error-Propagation Minimization Based Signal Selection Scheme for QRM-MLD
Ilmiawan SHUBHI Hidekazu MURATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/07/01
Vol. E99-B  No. 7  pp. 1566-1576
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
multi-user MIMOcollaborative interference cancellationsignal selectionQRM-MLD
 Summary | Full Text:PDF(3.5MB)

Diamond Cellular Network —Optimal Combination of Small Power Basestations and CoMP Cellular Networks —
Hidekazu SHIMODAIRA Gia Khanh TRAN Kei SAKAGUCHI Kiyomichi ARAKI Shinobu NANBA Satoshi KONISHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/04/01
Vol. E99-B  No. 4  pp. 917-927
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
coordinated multi-point transmissionsmall power base stationdiamond cellular networkoptimal resource allocation
 Summary | Full Text:PDF(3MB)

A Study on Dynamic Clustering for Large-Scale Multi-User MIMO Distributed Antenna Systems with Spatial Correlation
Ou ZHAO Hidekazu MURATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/04/01
Vol. E99-B  No. 4  pp. 928-938
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
dynamic clusteringmulti-user MIMOdistributed antenna systemsspatial correlationsum ratezero-forcing precoding
 Summary | Full Text:PDF(999.7KB)

FOREWORD
Hidekazu MURATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/09/01
Vol. E98-B  No. 9  pp. 1732-1732
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(146.2KB)

Performance of Outer-Loop Control for Adaptive Modulation and Coding Based on Mutual Information in OFDM MIMO SDM
Teppei EBIHARA Yasuhiro KUGE Hidekazu TAOKA Nobuhiko MIKI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/08/01
Vol. E98-B  No. 8  pp. 1506-1517
Type of Manuscript:  Special Section PAPER (Special Section on 5G Radio Access Networks―Part I: Radio Access Technologies and System Design)
Category: 
Keyword: 
OFDMMIMOAMCmutual informationchannel coding
 Summary | Full Text:PDF(4MB)

Performance of Open-Loop Transmit Diversity with Intra-Subframe Frequency Hopping and Iterative Decision-Feedback Channel Estimation for DFT-Precoded OFDMA
Lianjun DENG Teruo KAWAMURA Hidekazu TAOKA Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/08/01
Vol. E98-B  No. 8  pp. 1492-1505
Type of Manuscript:  Special Section PAPER (Special Section on 5G Radio Access Networks―Part I: Radio Access Technologies and System Design)
Category: 
Keyword: 
transmit diversityspace-time block codesingle-carrier FDMAchannel estimationturbo frequency domain equalizer
 Summary | Full Text:PDF(3.4MB)

Comparative Study of Open-Loop Transmit Diversity Schemes with Four Antennas in DFT-Precoded OFDMA Using Turbo FDE and Iterative Channel Estimation
Lianjun DENG Teruo KAWAMURA Hidekazu TAOKA Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/06/01
Vol. E98-B  No. 6  pp. 1065-1077
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
transmit diversityspace-time block codesingle-carrier FDMAchannel estimationturbo frequency domain equalizer
 Summary | Full Text:PDF(2.7MB)

An Iterative MIMO Receiver Employing Virtual Channels with a Turbo Decoder for OFDM Wireless Systems
Akihito TAYA Satoshi DENNO Koji YAMAMOTO Masahiro MORIKURA Daisuke UMEHARA Hidekazu MURATA Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/05/01
Vol. E98-B  No. 5  pp. 878-889
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
multiple-input multiple-outputvirtual channelsoft-input soft-outputlog likelihood ratioiterative scheme
 Summary | Full Text:PDF(1.5MB)

Sum-Rate Analysis for Centralized and Distributed Antenna Systems with Spatial Correlation and Inter-Cell Interference
Ou ZHAO Hidekazu MURATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/03/01
Vol. E98-B  No. 3  pp. 449-455
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
distributed antenna systemsspatial correlationspatially correlated shadowingcorrelated multi-path fadinginter-cell interferenceergodic sum-ratezero-forcing beamforming
 Summary | Full Text:PDF(776.7KB)

Millimeter-Wave Evolution for 5G Cellular Networks
Kei SAKAGUCHI Gia Khanh TRAN Hidekazu SHIMODAIRA Shinobu NANBA Toshiaki SAKURAI Koji TAKINAMI Isabelle SIAUD Emilio Calvanese STRINATI Antonio CAPONE Ingolf KARLS Reza AREFI Thomas HAUSTEIN 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/03/01
Vol. E98-B  No. 3  pp. 388-402
Type of Manuscript:  Special Section PAPER (Special Section on Position Papers Exploring Innovative Intelligence and Technologies in Communications)
Category: 
Keyword: 
millimeter-wave5G cellular networksmall cellC-RANsystem rate gain
 Summary | Full Text:PDF(3.7MB)

Experimental Evaluation of Low Complexity User Selection Schemes for Multi-User MIMO Systems
Satoshi NISHINO Hidekazu MURATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/02/01
Vol. E98-A  No. 2  pp. 606-610
Type of Manuscript:  Special Section LETTER (Special Section on Wideband Systems)
Category: 
Keyword: 
multi-user MIMOindoor experimentuser selection scheme
 Summary | Full Text:PDF(1.7MB)

Sum Rate Analysis of MU-MISO Systems with ZF Beamforming over Composite Fading Channels
Ou ZHAO Hidekazu MURATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/02/01
Vol. E98-A  No. 2  pp. 558-568
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
spatially correlated shadowingcorrelated rayleigh fadingsum ratezero-forcing beamformingMU-MISO
 Summary | Full Text:PDF(1.1MB)

Convex Approximated Weighted Sum-Rate Maximization for Multicell Multiuser OFDM
Mirza Golam KIBRIA Hidekazu MURATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/08/01
Vol. E97-A  No. 8  pp. 1800-1805
Type of Manuscript:  LETTER
Category: Numerical Analysis and Optimization
Keyword: 
coordinated downlink beamformingsum-rate maximizationconvex approximationmulticell MU-OFDM
 Summary | Full Text:PDF(386.4KB)

Performance of Partitioned Vector Quantization with Optimized Feedback Budget Allocation
Mirza Golam KIBRIA Hidekazu MURATA Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/06/01
Vol. E97-B  No. 6  pp. 1184-1194
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
partitioned vector quantizationfeedback budget optimizationmultiuser-MISONonlinear precoding
 Summary | Full Text:PDF(1.3MB)

An Efficient Algorithm for Weighted Sum-Rate Maximization in Multicell OFDMA Downlink
Mirza Golam KIBRIA Hidekazu MURATA Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/01/01
Vol. E97-A  No. 1  pp. 69-77
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: Resource Allocation
Keyword: 
weighted sum-rate maximizationcoordinated linear precodingconvex approximationsecond-order cone programming
 Summary | Full Text:PDF(873.3KB)

Investigation on Frequency Diversity Effects of Various Transmission Schemes Using Frequency Domain Equalizer for DFT-Precoded OFDMA
Lianjun DENG Teruo KAWAMURA Hidekazu TAOKA Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/01/01
Vol. E97-A  No. 1  pp. 30-39
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: Foundations
Keyword: 
single-carrier FDMAfrequency diversityfrequency domain equalizerfrequency mean square covarianceDFT-precoded OFDMA
 Summary | Full Text:PDF(2.6MB)

Experiments on Asymmetric Carrier Aggregation Associated with Control Signaling Reception Quality in LTE-Advanced
Keisuke SAITO Yuichi KAKISHIMA Teruo KAWAMURA Yoshihisa KISHIYAMA Hidekazu TAOKA Hidehiro ANDOH 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/11/01
Vol. E96-A  No. 11  pp. 2106-2113
Type of Manuscript:  Special Section PAPER (Special Section on Smart Multimedia & Communication Systems)
Category: Communication Theory and Signals
Keyword: 
LTE-Advancedasymmetric carrier aggregationcontrol signalingexperiment
 Summary | Full Text:PDF(2.3MB)

Optimization of Picocell Locations and Its Parameters in Heterogeneous Networks with Hotspots
Hidekazu SHIMODAIRA Gia Khanh TRAN Kei SAKAGUCHI Kiyomichi ARAKI Shoji KANEKO Noriaki MIYAZAKI Satoshi KONISHI Yoji KISHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/06/01
Vol. E96-B  No. 6  pp. 1338-1347
Type of Manuscript:  Special Section PAPER (Special Section on Heterogeneous Networks for Future Cellular Systems)
Category: 
Keyword: 
heterogeneous networkspicocellresource allocationcell associationpico BS locationoptimization problem
 Summary | Full Text:PDF(3MB)

An Adaptive Fairness and Throughput Control Approach for Resource Scheduling in Multiuser Wireless Networks
Lin SHAN Sonia AISSA Hidekazu MURATA Susumu YOSHIDA Liang ZHAO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/02/01
Vol. E96-B  No. 2  pp. 561-568
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
multiuser diversitymultiuser schedulingproportional fairnessfairness indexadaptive fairnessthroughput control
 Summary | Full Text:PDF(1.8MB)

Software Radio-Based Distributed Multi-User MIMO Testbed: Towards Green Wireless Communications
Hidekazu MURATA Susumu YOSHIDA Koji YAMAMOTO Daisuke UMEHARA Satoshi DENNO Masahiro MORIKURA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/01/01
Vol. E96-A  No. 1  pp. 247-254
Type of Manuscript:  INVITED PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
green wirelessmulti-user MIMOsoftware radiodistributed antenna systemfield experiment
 Summary | Full Text:PDF(2.8MB)

Effect of Intra-Subframe Frequency Hopping on Codebook Based Closed-Loop Transmit Diversity for DFT-Precoded OFDMA
Lianjun DENG Teruo KAWAMURA Hidekazu TAOKA Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/12/01
Vol. E95-B  No. 12  pp. 3699-3707
Type of Manuscript:  Special Section PAPER (Special Section on Coding and Coding Theory-Based Signal Processing for Wireless Communications)
Category: 
Keyword: 
transmit diversityprecodingfrequency hoppingfrequency-selective fading
 Summary | Full Text:PDF(2.4MB)

Comparative Study of Open-Loop Transmit Diversity Schemes for DFT-Precoded OFDMA in Frequency-Selective Fading Channels
Lianjun DENG Teruo KAWAMURA Hidekazu TAOKA Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/12/01
Vol. E95-B  No. 12  pp. 3708-3718
Type of Manuscript:  Special Section PAPER (Special Section on Coding and Coding Theory-Based Signal Processing for Wireless Communications)
Category: 
Keyword: 
transmit diversityspace-time block codespace-frequency block codesingle-carrier FDMA
 Summary | Full Text:PDF(3.1MB)

Opportunistic Scheduling for Hybrid Network Coding and Cooperative Relaying Techniques in Wireless Networks
Lin SHAN Hidekazu MURATA Sonia AISSA Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/05/01
Vol. E95-B  No. 5  pp. 1751-1760
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
cooperative relayingnetwork codingopportunistic schedulingasymmetric traffic
 Summary | Full Text:PDF(753.9KB)

A Correlation-Based Watermarking Technique of 3-D Meshes via Cyclic Signal Processing
Toshiyuki UTO Yuka TAKEMURA Hidekazu KAMITANI Kenji OHUE 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2012/05/01
Vol. E95-D  No. 5  pp. 1272-1279
Type of Manuscript:  Special Section PAPER (Special Section on Recent Advances in Multimedia Signal Processing Techniques and Applications)
Category: Image Processing
Keyword: 
watermarkingspread spectrum code3-D meshcyclic signal processing
 Summary | Full Text:PDF(1.1MB)

Partially Non-orthogonal Block Diagonalization-Based Precoding in Downlink Multiuser MIMO with Limited Channel State Information Feedback
Yuki TAJIKA Hidekazu TAOKA Kenichi HIGUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/12/01
Vol. E94-B  No. 12  pp. 3280-3288
Type of Manuscript:  Special Section PAPER (Special Section on Cooperative Communications for Cellular Networks)
Category: 
Keyword: 
multiuser MIMObase station cooperationprecodingblock diagonalizationchannel state information
 Summary | Full Text:PDF(1.4MB)

Performance of Interference Rejection Combining Receiver to Suppress Inter-Cell Interference in LTE-Advanced Downlink
Yusuke OHWATARI Nobuhiko MIKI Takahiro ASAI Tetsushi ABE Hidekazu TAOKA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/12/01
Vol. E94-B  No. 12  pp. 3362-3369
Type of Manuscript:  Special Section PAPER (Special Section on Cooperative Communications for Cellular Networks)
Category: 
Keyword: 
LTE-Advancedinterference rejection combininginter-cell interferencecoordinated multipoint transmission/reception
 Summary | Full Text:PDF(2.9MB)

Evolutionary Game Based Access Control Protocol in Wireless Networks with Mobile Routers
Ippei AOKI Koji YAMAMOTO Hidekazu MURATA Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/08/01
Vol. E94-B  No. 8  pp. 2225-2234
Type of Manuscript:  Special Section PAPER (Special Section on Deployment and Operation of New Internet Technology: Challenges and Approaches)
Category: 
Keyword: 
mobile routerevolutionary game theorygame theoryCSMA/CA
 Summary | Full Text:PDF(701.6KB)

Resource Reduction Method for the LTE-Advanced Uplink ACK/NACK Signal and SR
Seigo NAKAO Kenji TAKAGI Masaru FUKUOKA Daichi IMAMURA Hidekazu MURATA Koji YAMAMOTO Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/01/01
Vol. E94-B  No. 1  pp. 364-367
Type of Manuscript:  LETTER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
LTE-Advancedspace orthogonal resource transmit diversityphase rotationACK/NACK signalscheduling request
 Summary | Full Text:PDF(280.4KB)

Potential Game Approach for Spectrum Sharing in Distributed Cognitive Radio Networks
I Wayan MUSTIKA Koji YAMAMOTO Hidekazu MURATA Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/12/01
Vol. E93-B  No. 12  pp. 3284-3292
Type of Manuscript:  Special Section PAPER (Special Section on Wireless Distributed Networks)
Category: 
Keyword: 
spectrum sharinginterference managementcognitive radiogame theorypotential game
 Summary | Full Text:PDF(780.5KB)

FPGA Implementation of STBC Based Cooperative Relaying System
Hidekazu MURATA Yuji OISHI Koji YAMAMOTO Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/08/01
Vol. E93-B  No. 8  pp. 1988-1992
Type of Manuscript:  Special Section PAPER (Special Section on Implementation, Experiments, and Practice for Ad Hoc and Mesh Networks)
Category: 
Keyword: 
multi-hop wireless networkscooperative relayinglaboratory experimentsFPGA implementation
 Summary | Full Text:PDF(924.8KB)

Impact and Use of the Asymmetric Property in Bi-directional Cooperative Relaying under Asymmetric Traffic Conditions
Takaaki SAEKI Koji YAMAMOTO Hidekazu MURATA Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/08/01
Vol. E93-B  No. 8  pp. 2126-2134
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
cooperative relayingasymmetric trafficoptimal relay positionopportunistic scheduling
 Summary | Full Text:PDF(827.8KB)

Cell Edge Capacity Improvement by Using Adaptive Base Station Cooperation in Cellular Networks with Fractional Frequency Reuse
Liang XU Koji YAMAMOTO Hidekazu MURATA Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/07/01
Vol. E93-B  No. 7  pp. 1912-1918
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
base station cooperationcell edgefractional frequency reuseinter-cell interference
 Summary | Full Text:PDF(1MB)

Channel-Gain-Based Transmission Scheduling for Cooperative Relaying
Naotaka SHIBATA Koji YAMAMOTO Hidekazu MURATA Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/03/01
Vol. E93-B  No. 3  pp. 776-779
Type of Manuscript:  LETTER
Category: Terrestrial Radio Communications
Keyword: 
cooperative relayingtransmission schedulingspectral efficiency
 Summary | Full Text:PDF(228.5KB)

Capacity Analysis of Cooperative Relaying Networks with Adaptive Relaying Scheme Selection
Kunihiko TESHIMA Koji YAMAMOTO Hidekazu MURATA Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/12/01
Vol. E92-B  No. 12  pp. 3744-3752
Type of Manuscript:  PAPER
Category: Network
Keyword: 
cooperative relayingmultihopspectral efficiencyadaptive controlgame theory
 Summary | Full Text:PDF(529KB)

A Multi-Stage Hybrid Scheduler for Codebook-Based MU-MIMO System
Jingxiu LIU Xiaoming SHE Lan CHEN Hidekazu TAOKA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/06/01
Vol. E92-B  No. 6  pp. 2303-2307
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
precodingmulti-user schedulingcodebookMax C/IPF
 Summary | Full Text:PDF(233.2KB)

Comparisons between Common and Dedicated Reference Signals for MIMO Multiplexing Using Precoding in Evolved UTRA Downlink
Hidekazu TAOKA Yoshihisa KISHIYAMA Kenichi HIGUCHI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1669-1679
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
Evolved UTRAOFDMMIMOprecoding reference signaldownlink
 Summary | Full Text:PDF(2.4MB)

Coverage Performance of Common/Shared Control Signals Using Transmit Diversity in Evolved UTRA Downlink
Hidekazu TAOKA Akihito MORIMOTO Hiroyuki KAWAI Kenichi HIGUCHI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1589-1599
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
OFDMtransmit diversityEvolved UTRAdownlinkcontrol signal
 Summary | Full Text:PDF(1.7MB)

Field Experiments on Real-Time 1-Gbps High-Speed Packet Transmission in MIMO-OFDM Broadband Packet Radio Access
Hidekazu TAOKA Kenichi HIGUCHI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1725-1734
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
OFDMMIMOdownlinkAMCQRM-MLDASESS
 Summary | Full Text:PDF(2.1MB)

Layered OFDMA and Its Radio Access Techniques for LTE-Advanced
Motohiro TANNO Yoshihisa KISHIYAMA Hidekazu TAOKA Nobuhiko MIKI Kenichi HIGUCHI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1743-1750
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
IMT-AdvancedLTE-AdvancedLayered OFDMAEvolved-UTRA
 Summary | Full Text:PDF(1MB)

Influence of Channel Estimation Error on MIMO Multiplexing Using Precoding in Downlink OFDM Radio Access
Takashi ISOGAI Mamoru SAWAHASHI Hidekazu TAOKA Kenichi HIGUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1553-1562
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
OFDMMIMOprecodingchannel estimationdownlink
 Summary | Full Text:PDF(1.7MB)

Experiments on Frequency Error Compensation Using Synchronization Channel in OFDM Radio Access
Hidekazu TAOKA Fumiaki ITO Keiji TAKAKUSAKI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1619-1626
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
OFDMAFCSCHdownlinkEvolved UTRA
 Summary | Full Text:PDF(2.3MB)

Field Experiments on Open-Loop Type Transmit Diversity in OFDM Radio Access
Shohei TSUCHIDA Mamoru SAWAHASHI Hidekazu TAOKA Kenichi HIGUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1705-1713
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
OFDMtransmit diversitySFBCSFBC+FSTD
 Summary | Full Text:PDF(2.7MB)

Adaptive Selection of Surviving Symbol Replica Candidates for Quasi-Maximum Likelihood Detection Using M-Algorithm with QR-Decomposition for OFDM MIMO Multiplexing
Kenichi HIGUCHI Hiroyuki KAWAI Hidekazu TAOKA Noriyuki MAEDA Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/04/01
Vol. E92-B  No. 4  pp. 1258-1271
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
OFDMMIMOspatial multiplexingmaximum likelihood detectionM-algorithm
 Summary | Full Text:PDF(2.9MB)

An Amperometric Sensor for Chemical Imaging Using Photoconductive Organic Film
Takuya HAGIWARA Masataka TAKAZAWA Hidekazu UCHIDA Yuki HASEGAWA Tamaki YAJI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2008/12/01
Vol. E91-C  No. 12  pp. 1863-1868
Type of Manuscript:  Special Section PAPER (Special Section on The Forefront of 21st Century Organic Molecular Electronics)
Category: Materials & Devices
Keyword: 
chemical image sensororganic photoconductive filmredox currentvoltammetry
 Summary | Full Text:PDF(464.7KB)

Multi-Codebook Based Beamforming and Scheduling for MIMO-OFDM Systems with Limited Feedback
Xiaoming SHE Jingxiu LIU Lan CHEN Hidekazu TAOKA Kenichi HIGUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/11/01
Vol. E91-B  No. 11  pp. 3745-3748
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
transmit beamforminglimited feedbackmulti-user diversityMIMO-OFDM
 Summary | Full Text:PDF(182.3KB)

Performance Improvement of Wireless Mesh Networks by Using a Combination of Channel-Bonding and Multi-Channel Techniques
Liang XU Koji YAMAMOTO Hidekazu MURATA Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/10/01
Vol. E91-B  No. 10  pp. 3103-3112
Type of Manuscript:  Special Section PAPER (Special Section on Next-Generation Mobile Multimedia Communications)
Category: 
Keyword: 
IEEE 802.11nchannel-bondingmulti-channelCSMA/CAwireless mesh network
 Summary | Full Text:PDF(554.4KB)

Spectral Efficiency of Fundamental Cooperative Relaying in Interference-Limited Environments
Koji YAMAMOTO Hirofumi MARUYAMA Takashi SHIMIZU Hidekazu MURATA Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/08/01
Vol. E91-B  No. 8  pp. 2674-2682
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
cooperative relayingmultihoparea spectral efficiencybandwidth efficiency
 Summary | Full Text:PDF(681.7KB)

Interference Information Based Power Control for Cognitive Radio with Multi-Hop Cooperative Sensing
Youngjin YU Hidekazu MURATA Koji YAMAMOTO  Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/01/01
Vol. E91-B  No. 1  pp. 70-76
Type of Manuscript:  Special Section PAPER (Special Section on Cognitive Radio and Spectrum Sharing Technology)
Category: Spectrum Sensing
Keyword: 
cognitive radiocooperative sensingshadowinginterference informationmulti-hop transmission
 Summary | Full Text:PDF(692.1KB)

Development of a Tracking Method for Augmented Reality Applied to NPP Maintenance Work and Its Experimental Evaluation
Zhiqiang BIAN Hirotake ISHII Hiroshi SHIMODA Hidekazu YOSHIKAWA Yoshitsugu MORISHITA Yoshiki KANEHIRA Masanori IZUMI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2007/06/01
Vol. E90-D  No. 6  pp. 963-974
Type of Manuscript:  PAPER
Category: Multimedia Pattern Processing
Keyword: 
augmented realitynuclear power plantmaintenancelinecode markertracking method
 Summary | Full Text:PDF(2.1MB)

Modification of Cubic Bezier Spirals for Curvature Linearity
Koichi HARADA Hidekazu USUI Koichiro NISHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2007/01/01
Vol. E90-D  No. 1  pp. 364-370
Type of Manuscript:  PAPER
Category: Computer Graphics
Keyword: 
spiralscurvature variationclothoidBezier curvevolume of a curvetransition curve
 Summary | Full Text:PDF(251.4KB)

Prototype Implementation of Real-Time ML Detectors for Spatial Multiplexing Transmission
Toshiaki KOIKE Yukinaga SEKI Hidekazu MURATA Susumu YOSHIDA Kiyomichi ARAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/03/01
Vol. E89-B  No. 3  pp. 845-852
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
multiple-input multiple-output (MIMO)spatial multiplexingmaximum-likelihood detection (MLD)field programmable gate array (FPGA)real-time MIMO detector
 Summary | Full Text:PDF(770.2KB)

Boundary-Active-Only Adaptive Power-Reduction Scheme for Region-Growing Video-Segmentation
Takashi MORIMOTO Hidekazu ADACHI Osamu KIRIYAMA Tetsushi KOIDE Hans Jurgen MATTAUSCH 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2006/03/01
Vol. E89-D  No. 3  pp. 1299-1302
Type of Manuscript:  LETTER
Category: Image Processing and Video Processing
Keyword: 
image segmentationreal-time image processingparallel processingLSI implementation
 Summary | Full Text:PDF(1.3MB)

Experimental Evaluation of Spatial Interleaving in Trellis-Coded MIMO Transmission
Toshiaki KOIKE Hidekazu MURATA Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/03/01
Vol. E89-B  No. 3  pp. 985-989
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
TCMMLSEMIMOlaboratory experiment
 Summary | Full Text:PDF(402.5KB)

Adaptive Mode Control for Low-Power Caches Based on Way-Prediction Accuracy
Hidekazu TANAKA Koji INOUE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/12/01
Vol. E88-A  No. 12  pp. 3274-3281
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Low Power Methodology
Keyword: 
low powercacheway predictionconfidence information
 Summary | Full Text:PDF(1MB)

Genetic Design Method for Near-Optimal Training Sequences in Wideband Spatial Multiplexing Systems
Toshiaki KOIKE Hidekazu MURATA Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/08/01
Vol. E88-B  No. 8  pp. 3488-3492
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
channel estimationmultiple-antenna systemgenetic algorithms (GA)
 Summary | Full Text:PDF(298.1KB)

Control of Batch Processes Based on Hierarchical Petri Nets
Tomoyuki YAJIMA Takashi ITO Susumu HASHIZUME Hidekazu KURIMOTO Katsuaki ONOGI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/11/01
Vol. E87-A  No. 11  pp. 2895-2904
Type of Manuscript:  Special Section PAPER (Special Section on Concurrent Systems and Hybrid Systems)
Category: Concurrent Systems
Keyword: 
batch controldiscrete event systemconcurrent systemhierarchical Petri net
 Summary | Full Text:PDF(730.8KB)

Evaluation of HARQ Scheme with Antenna Permutation and TCM Reassignment for Space-Time Transmission in Slow Nakagami-Rice Fading MIMO Channel
Toshiaki KOIKE Hidekazu MURATA Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/06/01
Vol. E87-B  No. 6  pp. 1487-1494
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
hybrid ARQmultiple antenna techniquespatial multiplexingtrellis-coded modulationspace-time transmissionMIMO channelconstellation diversity
 Summary | Full Text:PDF(551.7KB)

Two Dimensional Semiconductor-Based Photonic Crystal Slab Waveguides for Ultra-Fast Optical Signal Processing Devices
Yoshimasa SUGIMOTO Yu TANAKA Naoki IKEDA Kyozo KANAMOTO Yusui NAKAMURA Shunsuke OHKOUCHI Hitoshi NAKAMURA Kuon INOUE Hidekazu SASAKI Yoshinori WATANABE Koji ISHIDA Hiroshi ISHIKAWA Kiyoshi ASAKAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/03/01
Vol. E87-C  No. 3  pp. 316-327
Type of Manuscript:  INVITED PAPER (Special Section on Photonic Crystals and Their Device Applications)
Category: 
Keyword: 
photonic crystalphotonic band gapslab waveguidephotonic IC
 Summary | Full Text:PDF(2.7MB)

Experimental Evaluation of Coherent Adaptive Antenna Array Diversity Receiver Employing Optical Fiber Interface in IF Stage
Taisuke IHARA Hidekazu TAOKA Kenichi HIGUCHI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/07/01
Vol. E86-A  No. 7  pp. 1676-1688
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
optical fiber feederadaptive antenna arrayinterference suppressionW-CDMA
 Summary | Full Text:PDF(2.2MB)

A New Approach to Blind System Identification in MEG Data
Kuniharu KISHIDA Hidekazu FUKAI Takashi HARA Kazuhiro SHINOSAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/03/01
Vol. E86-A  No. 3  pp. 611-619
Type of Manuscript:  Special Section PAPER (Special Section on Blind Signal Processing: Independent Component Analysis and Signal Separation)
Category: Applications
Keyword: 
blind system identificationblind source separationfeedback systemtransfer functionsMEG
 Summary | Full Text:PDF(956.1KB)

Experiments on Coherent Adaptive Antenna Array Diversity Receiver Based on Antenna-Weight Generation Common to Paths in W-CDMA Reverse Link
Hidekazu TAOKA Shinya TANAKA Taisuke IHARA Kenichi HIGUCHI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/01/01
Vol. E86-B  No. 1  pp. 191-205
Type of Manuscript:  Special Section PAPER (Special Issue on Multiple Access and Signal Transmission Techniques for Future Mobile Communications)
Category: 
Keyword: 
DS-CDMAadaptive antenna arrayinterference suppression
 Summary | Full Text:PDF(2.9MB)

Verifying Signal-Transition Consistency of High-Level Designs Based on Symbolic Simulation
Kiyoharu HAMAGUCHI Hidekazu URUSHIHARA Toshinobu KASHIWABARA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2002/10/01
Vol. E85-D  No. 10  pp. 1587-1594
Type of Manuscript:  Special Section PAPER (Special Issue on Test and Verification of VLSI)
Category: Verification
Keyword: 
formal verificationhigh-level design verificationuninterpreted functionco-design verification
 Summary | Full Text:PDF(213.4KB)

Polyhedral Description of Panoramic Range Data by Stable Plane Extraction
Caihua WANG Hideki TANAHASHI Hidekazu HIRAYU Yoshinori NIWA Kazuhiko YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2002/09/01
Vol. E85-D  No. 9  pp. 1399-1408
Type of Manuscript:  PAPER
Category: Image Processing, Image Pattern Recognition
Keyword: 
panoramic range dataplane extractionpolyhedral modelscene description
 Summary | Full Text:PDF(3.6MB)

An Application Possibility of Self-Ordered Mesoporous Silicate for Surface Photo Voltage (SPV) Type NO Gas Sensor (II): Self-Ordered Mesoporous Silicate Incorporated SPV Device and Its Sensing Property Dependence on Mesostructure
Takeo YAMADA Hao-Shen ZHOU Hidekazu UCHIDA Masato TOMITA Yuko UENO Keisuke ASAI Itaru HONMA Teruaki KATSUBE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/06/01
Vol. E85-C  No. 6  pp. 1304-1310
Type of Manuscript:  Special Section PAPER (Special Issue on Recent Progress in Organic Molecular Electronics)
Category: Sensors
Keyword: 
self-ordered mesoporous silicate filmsurface photo voltagehexagonal mesostructurecubic mesostructureNO gas sensor
 Summary | Full Text:PDF(876KB)

An Application Possibility of Self-Ordered Mesoporous Silicate for Surface Photo Voltage Type NO Gas Sensor (I): The Characterization of Nonionic Triblock Copolymer Templated Self-Ordered Mesoporous Silicates and Preparation Their Film for Device Application
Takeo YAMADA Hao-Shen ZHOU Hidekazu UCHIDA Masato TOMITA Yuko UENO Keisuke ASAI Itaru HONMA Teruaki KATSUBE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/06/01
Vol. E85-C  No. 6  pp. 1298-1303
Type of Manuscript:  Special Section PAPER (Special Issue on Recent Progress in Organic Molecular Electronics)
Category: Sensors
Keyword: 
mesoporous silicate powdermesoporous silicate filmtriblock copolymerP123F127
 Summary | Full Text:PDF(1.6MB)

A Probabilistic Approach to Plane Extraction and Polyhedral Approximation of Range Data
Caihua WANG Hideki TANAHASHI Hidekazu HIRAYU Yoshinori NIWA Kazuhiko YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2002/02/01
Vol. E85-D  No. 2  pp. 402-410
Type of Manuscript:  PAPER
Category: Image Processing, Image Pattern Recognition
Keyword: 
range dataplane extractionprobabilistic approachpolyhedral modelscene description
 Summary | Full Text:PDF(2.3MB)

Experiments on Decision Feedback Type Coherent Adaptive Antenna Array Diversity Receiver in W-CDMA Reverse Link
Shinya TANAKA Hidekazu TAOKA Taisuke IHARA Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/07/01
Vol. E84-B  No. 7  pp. 1849-1860
Type of Manuscript:  Special Section PAPER (Special Issue on Adaptive Array Antenna Techniques for Advanced Wireless Communications)
Category: Application to CDMA
Keyword: 
DS-CDMAadaptive antenna arrayinterference suppressiondecision feedback data
 Summary | Full Text:PDF(1.3MB)

Direction of Arrival Estimation Using Nonlinear Microphone Array
Hidekazu KAMIYANAGIDA Hiroshi SARUWATARI Kazuya TAKEDA Fumitada ITAKURA Kiyohiro SHIKANO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/04/01
Vol. E84-A  No. 4  pp. 999-1010
Type of Manuscript:  Special Section PAPER (Special Section on Acoustic Signal Processing)
Category: 
Keyword: 
nonlinear array signal processingmicrophone arrayDOA estimationcomplementary beamforming
 Summary | Full Text:PDF(977.5KB)

Uniquely Decodable Code for Two-User Multiple-Access Channel Using Complex-Valued Signal
Yuan LI Hidekazu MURATA Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/03/01
Vol. E84-B  No. 3  pp. 581-588
Type of Manuscript:  PAPER
Category: Fundamental Theories
Keyword: 
multiple-accessuniquely decodable codecochannel interference (CCI)trellis-coded modulation
 Summary | Full Text:PDF(557.4KB)

Prescaler PLL Frequency Synthesizer with Multi-Programmable Divider
Yasuaki SUMI Shigeki OBOTE Naoki KITAI Hidekazu ISHII Ryousuke FURUHASHI Yutaka FUKUI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/03/25
Vol. E83-A  No. 3  pp. 421-426
Type of Manuscript:  Special Section PAPER (Special Section of Selected Papers from the 12th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
PLL frequency synthesizerprescalermulti-programmable divider(N+1/2) programmable divider
 Summary | Full Text:PDF(1.1MB)

Fiber Optic Fluorosensor for Oxygen Measurement
Eiji TOBA Junji KAZAMA Hidekazu TANAKA Toyonori NISHIMATSU Hiroaki AIZAWA Hiroaki ISHIZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2000/03/25
Vol. E83-C  No. 3  pp. 366-370
Type of Manuscript:  Special Section PAPER (Special Issue on Optical Fiber Sensors)
Category: Chemical, Environmental, Biochemical and Medical Sensors
Keyword: 
fiber opticfluorescenceoxygen sensormedical examinationSolvent Green 5
 Summary | Full Text:PDF(811.8KB)

Dynamic Channel Assignment Algorithms with Adaptive Array Antennas in Cellular Systems
Lan CHEN Hidekazu MURATA Susumu YOSHIDA Shouichi HIROSE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/07/25
Vol. E82-A  No. 7  pp. 1202-1209
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
dynamic channel assignmentcellular systemadaptive array antennablocking probabilityforced termination probability
 Summary | Full Text:PDF(943.3KB)

A Dynamic Timeslot Assignment Algorithm for Asymmetric Traffic in Multimedia TDMA/TDD Mobile Radio
Lan CHEN Susumu YOSHIDA Hidekazu MURATA Shouichi HIROSE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/07/25
Vol. E81-A  No. 7  pp. 1358-1366
Type of Manuscript:  Special Section PAPER (Special Section on Fundamentals of Multi-dimensional Mobile Information Network)
Category: 
Keyword: 
mobile communicationmultimediadynamic timeslot assignmentblocking probabilityforced termination probabilitytransmission delay
 Summary | Full Text:PDF(710KB)

Theoretical Analysis of BER Performance Bounds of Trellis-Coded Co-channel Interference Canceller
Yuan LI Hidekazu MURATA Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/04/25
Vol. E81-B  No. 4  pp. 754-761
Type of Manuscript:  PAPER
Category: Mobile Communication
Keyword: 
mobile radio communicationco-channel interferencemulti-user detectioninterference cancellertrellis-coded modulation
 Summary | Full Text:PDF(681.8KB)

Neural Network Based Photometric Stereo with a Nearby Rotational Moving Light Source
Yuji IWAHORI Robert J. WOODHAM Masahiro OZAKI Hidekazu TANAKA Naohiro ISHII 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1997/09/25
Vol. E80-D  No. 9  pp. 948-957
Type of Manuscript:  PAPER
Category: Image Processing,Computer Graphics and Pattern Recognition
Keyword: 
photometric stereoneural networkprincipal components analysiscast shadowsinter-reflection
 Summary | Full Text:PDF(900.1KB)

A Dynamic Channel Assignment Algorithm for Voice and Data Integrated TDMA Mobile Radio
Lan CHEN Susumu YOSHIDA Hidekazu MURATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/07/25
Vol. E80-A  No. 7  pp. 1204-1210
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Network)
Category: 
Keyword: 
mobile communicationintegrated trafficdynamic channel assignmentblocking probabilityforced termination probability
 Summary | Full Text:PDF(561.6KB)

Handwritten Postal Code Recognition by Neural Network --A Comparative Study --
Ahmad Fadzil ARIF Hidekazu TAKAHASHI Akira IWATA Toshio TSUTSUMIDA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1996/05/25
Vol. E79-D  No. 5  pp. 443-449
Type of Manuscript:  Special Section PAPER (Special Issue on Character Recognition and Document Understanding)
Category: Comparative Study
Keyword: 
handwritten numeral recognitionfeature extractionneural network
 Summary | Full Text:PDF(537.3KB)

Compensation for the Distortion of Bipolar Surface EMG Signals Caused by Innervation Zone Movement
Hidekazu KANEKO Tohru KIRYU Yoshiaki SAITOH 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1996/04/25
Vol. E79-D  No. 4  pp. 373-381
Type of Manuscript:  PAPER
Category: Bio-Cybernetics and Neurocomputing
Keyword: 
innervation zoneconduction velocitymultichannel EMGinverse filteringbrachial biceps
 Summary | Full Text:PDF(823.9KB)

Computational Complexity Reduction of Trellis-Coded Co-channel Interference Canceller
Hidekazu MURATA Atsushi FUJIWARA Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1996/03/25
Vol. E79-B  No. 3  pp. 342-352
Type of Manuscript:  Special Section PAPER (Special Issue on Advanced Adaptive Radio Communication Technologies)
Category: Modulation, Demodulation
Keyword: 
digital cellular radioco-channel interferenceinterference cancellertrellis coded modulation
 Summary | Full Text:PDF(803.2KB)

Test Structure for the Evaluation of Si Substrates
Yoshiko YOSHIDA Mikihiro KIMURA Morihiko KUME Hidekazu YAMAMOTO Hiroshi KOYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1996/02/25
Vol. E79-C  No. 2  pp. 192-197
Type of Manuscript:  Special Section PAPER (Special Issue on Microelectronic Test Structures)
Category: SOI & Material Characterization
Keyword: 
silicon substratecrystal defectTDDBtest structure
 Summary | Full Text:PDF(781.5KB)

Moving Point Light Source Photometric Stereo
Yuji IWAHORI Robert J. WOODHAM Hidekazu TANAKA Naohiro ISHII 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1994/08/25
Vol. E77-D  No. 8  pp. 925-929
Type of Manuscript:  LETTER
Category: Image Processing, Computer Graphics and Pattern Recognition
Keyword: 
shape from shadingphotometric stereoLambertian reflectance
 Summary | Full Text:PDF(273.1KB)

Adaptive Receiver Consisting of MLSE and Sector-Antenna Diversity for Mobile Radio Communications
Hidekazu MURATA Susumu YOSHIDA Tsutomu TAKEUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/05/25
Vol. E77-B  No. 5  pp. 573-579
Type of Manuscript:  Special Section PAPER (Special Issue on Adaptive Signal Processing in Mobile Radio Communications)
Category: 
Keyword: 
mobile radio communicationdiversity receptionadaptive equalizermultipath propagationco-channel interference
 Summary | Full Text:PDF(547KB)

Motion Artifact Elimination Using Fuzzy Rule Based Adaptive Nonlinear Filter
Tohru KIRYU Hidekazu KANEKO Yoshiaki SAITOH 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/05/25
Vol. E77-A  No. 5  pp. 833-838
Type of Manuscript:  Special Section PAPER (Special Section on Signal Processing and System Theory)
Category: 
Keyword: 
nonlinear filterfuzzyadaptive filterartifact eliminationseparation of superimposed signals
 Summary | Full Text:PDF(552.6KB)

Photometric Stereo for Specular Surface Shape Based on Neural Network
Yuji IWAHORI Hidekazu TANAKA Robert J. WOODHAM Naohiro ISHII 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1994/04/25
Vol. E77-D  No. 4  pp. 498-506
Type of Manuscript:  Special Section PAPER (Special Issue on Neurocomputing)
Category: Image Processing
Keyword: 
neural networkcomputer visionshape from shadingphotometric stereoPhong reflectance function
 Summary | Full Text:PDF(815.6KB)

Predicting the Next Utterance Linguistic Expressions Using Contextual Information
Hitoshi IIDA Takayuhi YAMAOKA Hidekazu ARITA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1993/01/25
Vol. E76-D  No. 1  pp. 62-73
Type of Manuscript:  Special Section PAPER (Special Issue on Speech and Discourse Processing in Dialogue Systems)
Category: 
Keyword: 
dialogue understandingplan recognitionuniversal pragmaticsutterance predictionspeech recognition
 Summary | Full Text:PDF(1MB)

Recessed Memory Array Technology for a Double Cylindrical Stacked Capacitor Cell of 256M DRAM
Kazuhiko SAGARA Tokuo KURE Shoji SHUKURI Jiro YAGAMI Norio HASEGAWA Hidekazu GOTO Hisaomi YAMASHITA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1992/11/25
Vol. E75-C  No. 11  pp. 1313-1322
Type of Manuscript:  Special Section PAPER (Special Issue on LSI Memories)
Category: 
Keyword: 
recessed memory arraystacked capacitor cell256 MDRAM
 Summary | Full Text:PDF(1.5MB)

A Modem Implementation Using a Periodically Time Varying Digital Filter
Hidekazu TANAI Rokuya ISHII 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1991/11/25
Vol. E74-A  No. 11  pp. 3569-3575
Type of Manuscript:  Special Section PAPER (Special Issue on HAKONE Digital Signal Processing Symposium)
Category: 
Keyword: 
 Summary | Full Text:PDF(393.1KB)

A Low-Profile Dual-Band Microstrip Antenna Having Open-Circuited Stripline-Stub
Misao HANEISHI Hidekazu SUGA Takaaki HASEGAWA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1986/11/25
Vol. E69-E  No. 11  pp. 1165-1166
Type of Manuscript:  LETTER
Category: Antenna and Propagation
Keyword: 
 Summary | Full Text:PDF(129.2KB)

Metric in the Set of Labelled Graphs and Its Applications to Network Theory
Yoji KAJITANI Hidekazu SAKURAI Eiji OKAMOTO 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1976/02/25
Vol. E59-E  No. 2  pp. 7-12
Type of Manuscript:  PAPER
Category: Network Theory
Keyword: 
 Summary | Full Text:PDF(384.6KB)